Creeper attachment for tractor wheels



Nov. 10, 1931. J. T. MOORE 1,830,911

v I CREEPER B TTACHMENT FOR TRACTOR WHEELS Originai Filed Dec. 27, 1926 3 Sheets-Shet 1 Nov. 10, 1931. J. 'r. MOORE ,CREEPER ATTACHMENT FOR TRACTOR WHEELS Original Filed Dec. 27, 1926 3 Sheets-Sheet 2 Patented Nov. 10,

UNITED STATES" roan roman-100ml or mmmrmsnvama, ass onoa, sir mm: A8816! wars. are m-warson men or nnw'roax cameras. Arucmmm Original application and mm :7, 1m, Serial No. 1mm. Divided and. an apjjlluflda nea' (20B?ORA'IIEIOH, OF CANAS'IOTA, NEW YORK, A. COB-PORK- iroa moron 'wnms m, 22, 1920. Serial No. asaoov.

, This invention relates to improvements in endless tracks or creeper tread .devices tor tractors which may be simplyand readily fthsit itmay axle housings, upon removal of. the rear Wheels of the tractor,

attached ina stron manner to a tractor chassis in substitution or the usual rear or driving wheels of thevehicle'.

' One of the primary objects of the present invention is to. provide a creeper device which maybe substituted for the rear wheels of a tractor the device being so designed be readily mounted on the rear and furnish. endless track means for-the latter.

Another object of the invention is to provide a novel sleeve adapted to be mounted upon and engage one of the rear axle housings of the tractor; this sleeve consisting of a plurality ofsections properly erforated so as to be readily secured to'the ifi'erential casing by the same screws employed to join 7 the reanaxle housing and difi'erential casing,

said sleeve being provided with a journal.

A further object is to furnish a device of this character-with a specially formed beam, pivoted intermediate its ends on the journal of the sleeve, and havin 'its ends extending downwardly from the ournal to permit the emplo ment of relatively small wheels forthe en less track.

Another objectris to provide a beam of this character with detachable stationar axles to accommodate the wheels on whic the endless track is mounted.

A still further object is to rovide an it tachment for the rear axle of t e tractor, this attachment designed to be substituted for. one' of the ordinary rear wheels, and to carry a driving member from which the power of the-axle is transmitted to, one of the wheels of the endless tread or track. i

. With these and other objects iii-view, the presentinvention' consists. in certain novel details of construction and combinations and arrangement of parts, an as will hereinafterbe more fully described and the novel features thereof particularly pointed 'out in the ap ended 'cla1ms.

n the accompanyin drawings, Figure 1 is a top p an view'of a tractor ordinary differential and axle housin haw'ng the improved creeper device mounted section of one-half, one of the sleeves which is adapted for engagement with one of the rear axle housings.

Fig. 4 is an elevation of one of these sleeves. Fig. 5 is a longitudinal sectional view of the outer part of a hub member to be attached-to the rear axle projecting beyond its iiogsing in place of the ordinary rear wheel 11 I J'Fig. 6 is an elevation of this hub. member.

Fig. 7 is a longitudinal sectional view of the inner member of the hub. a

Fig. '8 is an elevation of the same.

Fig. 9 is a topplan view tudinal section of one of the ms to whlch the chain wheels areattached.

Fig. 10 is a side elevationof this beam.

In Fig. 1,-as previously stated, a tractor is partly in longitudinal pgtly in longi- I as shown, inounte upon and engaging said I housings, each 'of said sleeves being of conical form, (see Fig. 2) and consisting of two sections 3 having apertured flanges 4 to receive the bolts employed to secure the sections together. The sleeve 2, (see Figs. 3 and 4) is provided at its flared 'end with apertured osses 5, the'apertures of which are s aced to register with the s'crewholes of the 'fierential casing I, and screws 6 of slightly greater length than the original equi ment serve to anc or and support the inner v ared end of the split sleeve 'sections 3, 3, as well as tohold the rear axle housing 0 in assembly with the differential casing 1. Sections 3, 8, assemv bled in sleeve .form by bolts passin through their flanges 4 are supported att eir outer ends by means of the internalflanges 7 which constitute an annulus clamped tightly upon the present attachment. The' outer-end of the. sleeve is cylindrical to receive the L- shaped bearing rings 9 forming a journal for the beam 10. A retaining ring 11 is secured to the sleeve by screws 12, and it acts to hold the bearing rings and beam on the hub portion 13 of the sleeve.

The beam, (see Figs. 2, 9 and 10) 1s pref erably cast hollow to reduce the weight, and" its ends diverge downwardly as shown at 14:

in Fig. 10. Due to this downward inclination of the ends of the beam, smaller chain wheels may be employed than if the beam were made the chain wheel axles 18, to the beam. In

so wheels 20"from the axle 32 of the tractor,

straight.

Each extremity of the beam is shaped to form a split sleeve 15 having bolt holes 16 to accommodate the bolts 17, used in securing order to prevent any axial movement of the axle, the latter is notched at 19, and the bolt occupies this notch. I

A chain wheel 20 is mounted on each of the axles 18, and this chain wheel consists of an intermediate hub 21, and a air of discs or circular webs 22. Either the ront or rear wheel may be used as the driving member, and the wheel employed for this purpose is provided'with a seat 23 to receive a sprocket wheel 24, which may be detachably secured lplace by bolts 25.

ach end of the beam 10 has an outwardly extending annular flan e 26 to recelve the inner end of the hub, an an oil retaining ring 27 is arranged in the hub at this point. Lo cate'd between the wheel and the axle, are bearings 28 on which the wheel revolves. The wheels are secured on the axles by nuts or the like 29, and an ordinary washer 30 is placed between the nut and the outer one of v the'ball-bearings 28. A hub cap 31 completes the assembly. r

For the purpose of 'drlving one of the I provide the latter with an inner hub member 33 (see Figs. 7 and 8.) which is of conical formation and enters an outer hub member 34 of flaredshape. The member 33 may be keyed'to theaxle in any suitable manner, and both the inner and outer hub members have apertured. flanges 35 to receive screws 36 that are employed in drawing the two members together to effectively wedge them.

The outer hub member (see 5 and 6) .is

provided at its inner end withan L-shaped' flange 37 forming a seat for a sprocket wheel 38 the latter and the flangeB'I-being apertured to receive bolts 39 emp oyed in deas to drive one of the chain wheels 20 from' the axle of the tractor.

The chain designed to be employed with this mechanism may be. used either as a "'trailer or a tractor chain, in the latter case, power being applied as indicated above. However, it will be obvious to those skilled in the art, that the chain forming part of the present invention may be used for other pur-- poses, andin other environments than that disclosed herein.

This is a divisional application covering features heretofore disclosed in applicants,

application Serial No. 157,398, filed December 27, 1926.

What is claimed is 1. A creeper attachment for installation on a tractor of the type having a diiferential housing and a rear axle housingQbolted to each side thereof, said'attachment comprismg a pair of brackets adapted to be secured together in sleeve formation around a rear axle housing with their outer ends tightly clamped upon the outer end of said rear axle housing and their inner ends secured to the differential housing by the bolts which secure the rear axle housing thereto, a beam mtermediately pivoted upon said brackets, and load supporting means carried at the ends of the beam.

2. A creeper attachment for installation on a tractor of the. type having a differential housing and a rear axle housing bolted to each side thereof, said attachment'comprismg a pair of brackets adapted, to be secured together in'sleeve formation arounda rear axle housing with their outer ends tightly clamped upon the outer end of said rear axle housing and their inner ends secured to the differential housing by the bolts which secure the rear axle housing thereto, a bearing supporting portion formed on the outer ends of sald brackets adjacent the point at which they are clamped upon the outer end of the rear axle housing, a bearing member mount- 5 JOHN TURNER MOORE.

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